WILD BOOTSTRAP INFERENCE FOR WILDLY DIFFERENT CLUSTER SIZES

被引:201
作者
MacKinnon, James G. [1 ]
Webb, Matthew D. [2 ]
机构
[1] Queens Univ, Dept Econ, Kingston, ON, Canada
[2] Carleton Univ, Dept Econ, Ottawa, ON, Canada
关键词
D O I
10.1002/jae.2508
中图分类号
F [经济];
学科分类号
02 ;
摘要
The cluster robust variance estimator (CRVE) relies on the number of clusters being sufficiently large. Monte Carlo evidence suggests that the 'rule of 42' is not true for unbalanced clusters. Rejection frequencies are higher for datasets with 50 clusters proportional to US state populations than with 50 balanced clusters. Using critical values based on the wild cluster bootstrap performs much better. However, this procedure fails when a small number of clusters is treated. We explain why CRVE t statistics and the wild bootstrap fail in this case, study the 'effective number' of clusters and simulate placebo laws with dummy variable regressors. Copyright (C) 2016 John Wiley & Sons, Ltd.
引用
收藏
页码:233 / 254
页数:22
相关论文
共 24 条
[1]   Synthetic Control Methods for Comparative Case Studies: Estimating the Effect of California's Tobacco Control Program [J].
Abadie, Alberto ;
Diamond, Alexis ;
Hainmueller, Jens .
JOURNAL OF THE AMERICAN STATISTICAL ASSOCIATION, 2010, 105 (490) :493-505
[2]  
Angrist JD, 2009, MOSTLY HARMLESS ECONOMETRICS: AN EMPIRICISTS COMPANION, P1
[3]   Rural windfall or a new resource curse? Coca, income, and civil conflict in Colombia [J].
Angrist, Joshua D. ;
Kugler, Adriana D. .
REVIEW OF ECONOMICS AND STATISTICS, 2008, 90 (02) :191-215
[4]  
[Anonymous], 1355 QUEENS U DEP EC
[5]  
[Anonymous], TECHNICAL REPORT
[6]  
[Anonymous], REV EC STAT IN PRESS
[7]  
[Anonymous], 1314 QUEENS U DEP EC
[8]  
Bell R., 2002, SURV METHODOL, V28, P169
[9]   How much should we trust differences-in-differences estimates? [J].
Bertrand, M ;
Duflo, E ;
Mullainathan, S .
QUARTERLY JOURNAL OF ECONOMICS, 2004, 119 (01) :249-275
[10]   Inference with dependent data using cluster covariance estimators [J].
Bester, C. Alan ;
Conley, Timothy G. ;
Hansen, Christian B. .
JOURNAL OF ECONOMETRICS, 2011, 165 (02) :137-151